- St. Paul Limestone or Karst Outcrop covers an area of 35 sq, kilometers. It is 11 kilometer long and averages 3-5 kilometers in width, and rises 1,028 meter at its peak.
- It has 8 forest formations.
- It is home to 800 species of plants belonging to 300 genera and 100 families; and 290 species of trees.
- 165 species of birds dwell in the park comprising 67% of
Palawanavifauna, including 15 endemic species.
- 30 species of mammals, 19 reptiles, 10 amphibians, 23,779 individual species of insect mollusks and anthropods thrive in the park.
- 41 species of butterflies respresenting 6 families also dwell in the Park. The largest of this butterfly is the shallow-tailed Trogonoptera trojana with jet black wings lined with brilliant green triangles.
- The monkeys around the park can sometimes be obtrusive so be careful with your gears. Don’t leave them unattended.
- Karst refers to an area of limestone terrain characterized by sinks, ravines, and underground streams. These karst formations found in the
Underground Riverarea are the same karst mountains found in Vietnamand , especially those spectacular ranges snaking through Vang Vieng. (Vang Vieng's karst mountains verge on the dramatically beautiful!) Laos
Waiting for boats. she checks your tickets and assigns you to a boat worth PhP700. Don't forget to tip your boatmen at the end of your visit.
Sabang Beach - From the distance is the port where you get your boats for the Underground River Park area.
Robert's Resort Inn and its Jewel Restaurant in Sabang - inexpensive accommodation and sumptuous buffet. Check out previous entry for more information.